ET MALWARE Win32/Bumblebee Loader Checkin Activity

Query · suricata

flow:established,to_server;
flowbits:isset,et.bumblebee;
dsize:100<>200;
content:"|66 61 6c 63 6f 6e 22|"; startswith; fast_pattern;
target:src_ip;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET MALWARE Win32/Bumblebee Loader Checkin Activity · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET 443 (
    msg:"ET MALWARE Win32/Bumblebee Loader Checkin Activity";
    flow:established,to_server;
    flowbits:isset,et.bumblebee;
    dsize:100<>200;
    content:"|66 61 6c 63 6f 6e 22|"; startswith; fast_pattern;
    reference:md5,270103c51888a8e98972283c825d84cd;
    classtype:trojan-activity;
    sid:2047946; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_09_07, deployment Perimeter, malware_family Win32_Bumblebee, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_07, reviewed_at 2023_09_07;
    target:src_ip;
)

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